File Investigation Report
WMCODEC_UPDATE.EXEMalware Dropper
Your PC may be infected. The presence of a file called WMCODEC_UPDATE.EXE is a possible sign of infection.
You should urgently check your PC to make sure it is not infected. The free version of Prevx CSI will scan your PC in less than two minutes and check for millions of spyware and malware infections including WMCODEC_UPDATE.EXE. Don't put your confidential data, or your identity at risk, check your PC now with Prevx CSI.
Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Malware Dropper
- Cloaked Malware
- Malicious Software
File Behavior
WMCODEC_UPDATE.EXE has been seen to perform the following behavior:
- Enables an In Process Object/Server - Common with DLL Injections
- Creation and Registration of a Browser Helper Object in Internet Explorer
- Adds Products to the system registry
- This Process Creates Other Processes On Disk
- Can communicate with other computer systems using HTTP protocols
- This Process Deletes Other Processes From Disk
- Executes a Process
- Creates system tray popups, messages, errors and security warnings
- Writes to another Process's Virtual Memory (Process Hijacking)
- The Process is packed and/or encrypted using a software packing process
WMCODEC_UPDATE.EXE has been the subject of the following behavior:
- Deleted as a process from disk
- Created as a process on disk
- Executed as a Process
- Has code inserted into its Virtual Memory space by other programs
- Added as a Registry auto start to load Program on Boot up
- Terminated as a Process
Country Of Origin
The filename WMCODEC_UPDATE.EXE was first seen on Jul 22 2008 in the following geographical regions of the Prevx community:
- The UNITED STATES on Jul 22 2008
- CANADA on Jul 22 2008
- The UNITED KINGDOM on Jul 23 2008
- GERMANY on Aug 2 2008
- SPAIN on Aug 2 2008
File Name Aliases
WMCODEC_UPDATE.EXE can also use the following file names:
- UESIUQCR.EXE
- 2EXUHJPZ.EXE.PART
- 73003223.EXE
- OPR0IWY9.EXE
- 27096406.EXE
- AR44SESG.EXE
- BSC6LOMM.EXE
- 42561946.EXE
- 34429113.EXE
- 62876757.EXE
- REGION HACK D4734S.EXE
- LCG JUKEBOX 2 30 SERIAL.EXE
- MFU319A1.EXE
- 32005837.EXE
- 88485242.EXE
- MPI8VFOR.EXE.PART
- 58911996.EXE
- ADOBE FLASH V10.EXE
- Ÿ¶ÐÞ
- LPHC18NJ0E9AN.EXE
- WNX4EEHU.EXE
- 0GSTK9IZ.EXE
- AUMI1XHZ.EXE
- IZH9S4RF.EXE
- ZLOB/WMCODEC_UPDATE.EXE
- 36147058.DAT
- 22289665.EXE
- 54038547.EXE
- 83478005.EXE
- LPHCAU3J0ERB3.EXE
- 59064319.SVD
- RBQ65L7L.EXE
- 0C9W4J63.EXE
- 47037563.EXE
- 49431563.EXE
- LJRZBBO.TMP
Filesizes
The following file size has been seen:
- 89,614 bytes
- 266,877 bytes
- 407,033 bytes
- 266,870 bytes
- 40,972 bytes
- 275,055 bytes
- 9,728 bytes
- 257,365 bytes
Vendor, Product and Version Information
Files with the name WMCODEC_UPDATE.EXE have been seen to have the following Vendor, Product and Version Information in the file header:
- Microsoft Corporation; ; 1.00.0310
- ; Nccoouhu Application; 2, 8, 1, 1
File Type
The filename WMCODEC_UPDATE.EXE refers to many versions of an executable program.
File Activity
One or more files with the name WMCODEC_UPDATE.EXE creates, deletes, copies or moves the following files and folders:
- create folder C:\Program Files\RichVideoCodec
- Deletes c:\docume~1\user\locals~1\temp\nsqB.tmp
- Creates c:\windows\system32\RichVideoCodec.dll
- Creates c:\program files\richvideocodec\escan.exe
- Creates c:\program files\richvideocodec\InstallRegerLib.dll
- Deletes c:\docume~1\user\locals~1\temp\nsa11.tmp
- Creates c:\docume~1\user\locals~1\temp\nsa11.tmp\System.dll
- Opens/modifes c:\autoexec.bat
- Deletes c:\program files\richvideocodec\InstallRegerLib.dll
Registry Activity
One or more files with the name WMCODEC_UPDATE.EXE creates or modifies the following registry keys and values:
- HKEY_CURRENT_USER\Software\RichVideoCodec v0 C:\Program Files\RichVideoCodec
- HKEY_CURRENT_USER\Software\RichVideoCodec v1 http://codecservice1.com/service/index.php;http://codecservice2.com/service/index.php
- HKEY_CURRENT_USER\Software\RichVideoCodec v2 169
- HKEY_CURRENT_USER\Software\RichVideoCodec v3 0
- HKEY_CURRENT_USER\Software\RichVideoCodec v4 http://www.yourfavoritetube.com
- HKEY_CURRENT_USER\Software\RichVideoCodec v1
- HKEY_CURRENT_USER\Software\RichVideoCodec v2 8Ý»
- HKEY_CURRENT_USER\Software\RichVideoCodec v3 9
- HKEY_CURRENT_USER\Software\RichVideoCodec v4 aŸöQ$5+•_CHAR(0x12)_fI‰ü¥pñXˆR}˜šg‰b‘Û&x[S
- HKEY_CURRENT_USER\Software\RichVideoCodec v8 9
- HKEY_CURRENT_USER\Software\RichVideoCodec v5
- HKEY_CURRENT_USER\Software\RichVideoCodec v6 l™ðNl
- HKEY_CURRENT_USER\Software\RichVideoCodec v11 8Ù³_CHAR(0x16)_*.5ÕP
Website Activity
One or more files with the name WMCODEC_UPDATE.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1098 Port:19
- Port 80 IP:85.255.117.218